hitchinas



(No Model.) 2 Sheets-Sheet 1.

C. E. HITCHINGS.

Room-NG, GRATE.

` I Patented Dec. 3, 1889.'

yNo. 416,332f

Win/@ss 66,'

N. MYERSA Pmmuumgnpher. washington. DAC

(Nov Model.) r2 Sheets-Sheet. 2.

o. E. HITCHINGS. BOOKING GRATB.

No. 416,332. Patented Deo. 3,1889.

N. PETERS Pnlvmhompnv. wmingxan. im;

. frame a.

.integral with the frame a.

UNITED STATES .PATENT OFFICE.

CHARLES E. HITOHINGS, OF NET YORK, N. Y.

ROCKING GRATE.

SPECIFICATION forming part of Letters Patent No. 416,332, dated December 3, 1889.

Application iiled April 5, 1889. Serial No. 306,l03. (No model.)

To all whom, it may-concern:

Be it known that I, CHARLEs E. HITCHINGs, of the city, county, and State of New York, have invented a certain new and useful Improvement in Rocking G-rates, of which the following is a specification.

I will describe a rocking grate embodying Similar letters of reference designate coi-,

responding parts in all the figures.

A designates a base or chamber in which the grate-bars are arranged, and a a frame in which the grate-bars are journaled at one of their ends. The base A comprises an ash-pit a below the grate-bars, and is provided at its front with a door a2, through which ash es may be removed. This base may be applied to a furnace, stove, boiler, or other heating appliances. v

The frame a, in which the rocking grate-bars are partially journaled, comprises a plate-like rim which may be set down upon the interior of the base and will rest upon an internallyextending iiange a3, formed in the base and passing about the same near its upper side.

The forms of the grate-bars are immaterial butI have illustrated a form comprising longitudinally-extendin g ribs at and diagonallyextending branches or projections a5. Each of the grate-bars, near its ends, is provided with journals a6 co7, which are made integral therewith.' The journals a6 extend into bearings aS, formed' upon the under side of the In tact, the bearings as may be cast The j ourn als a7 of the grate-sections extend through bearings a, formed in the base A at the front thereof. From the upper sides of the grate-bars, when the said sections are in operative position,`

there extend upwardly projections am, constituting stops which prevent longitudinal displacement of the grate-bars, for the reason that if such longitudinal movement is attempted the said stops will contact with the adjacent edges of the frame a, and thus prevent the said movement of the bars.

In order to introduce the grate-bars into the base and secure them in position, they are passed in through the opening of the door a2, with the stops am inverted or turned downwardly. In such position the jolunals a7 of the grate-bars are passed through their bearings al) far enough to admit of the journals a being passed backwardly through the bearings ds. When the journals are properly within their bearings, the grate-bars are rotated so as to bring the stops d10 upon the upper sides of the grate-sections and into their normal position.

The outer ends of the journals al of the grate-bars extend through' the base A and l[here are secured to said outer ends arms a, which arms, in this instance, extend upwardly. I have shown a convenient means for securing the arms to the outer ends of the journals, consisting of squaringthe outer ends of the journals and passing them through correspondingly-shaped apertures in the lower extremities of the arms au. Vhen in such position, the arms a may be secured, so as to prevent their accidental displacement, by means of set-screws cd2. (Shown more clearly in Fig. 2.) The upper ends of the arms au have a pivotal connection with a connecting-rod (L13. This connecting-rod operates, when moved longitudinally, to cause the rocking of all the arms a in unison, andthe latter, by their connections with the journals of the grate-bars, will thus cause the rocking of the grate-bars. The rod a may be moved in both directions, and thus cause a shaking movement of all the grate-bars.

I have shown upon certain of the arms a socket-s alt-into which sockets may be inserted a handle or handles of any suitable kind for causing the movement ofthe rod um and the rocking of the grate-sections.

It is to be particularly observed that the arms all extend upwardly from the journals of the grate-sections, and are therefore in such position that they do not 'interfere with the opening or closing of the ash-pit door a2. It is to be observed, also, that by formingithe bearings for the journals a6 ai integral with the IOO base A, or an appurtenanee thereof, all use of bolts or rivets in the forming,` of the bearings is avoided, and hy forming` the journals a (17 integral with the grate-bars the use of all sockets or independent Shanks is dispensed with. Although l have shown the said hearings as formed one upon the frame a and another within the hase, it is quite obvious that the bearings might be formed Wholly Within the base or upon the frame, as is desired, as the frame merely constitutes a portion or appurtenanoe of the hase.

That I claim as 1ny'i1wention, and desire to secure hy Letters Patent, is- 

